Keyboard



FIG. 1 is a perspective view from the front, top and left side of a keyboard showing my new design with an anti-dust lid raised;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view of the keyboard thereof with a lowered anti-dust lid; and,

FIG. 9 is a left side view of FIG. 8 . 

The ornamental design for a keyboard, as shown and described. 